<template>
    <div class="login_container">
        <!-- 登录框盒子 -->
        <div class="login_box">
            <!-- 头像盒子 -->
            <div class="avater_box">
                <img src="@/assets/logo.png">
            </div>
            <!-- 登录表单区域 -->
            <div>
                <el-form ref="loginFormRef" label-width="0px" class="login_form" :model="loginForm" :rules="loginFormRules">
                    <!-- 用户名 -->
                    <el-form-item prop="username">
                        <el-input prefix-icon="el-icon-user" v-model="loginForm.username"></el-input>
                    </el-form-item>
                    <!-- 密码 -->
                    <el-form-item prop="password">
                        <el-input prefix-icon="el-icon-lock" v-model="loginForm.password" show-password></el-input>
                    </el-form-item>
                    <!-- 按钮 -->
                    <el-form-item class="btns">
                        <el-button type="primary" @click="login">登录</el-button>
                        <el-button type="info" @click="resetLoginForm">重置</el-button>
                    </el-form-item>

                </el-form>
            </div>
        </div>
    </div>
</template>

<script>
export default {
    data(){
        return{
            //收集账号密码
            loginForm:{
                username:'admin',
                password:'123456'
            },
            //表单的验证规则对象
            loginFormRules:{
                //验证是否合法
                username:[
                    { required: true, message: '请输入登录名称', trigger: 'blur' },
                    { min: 3, max: 10, message: '长度在 3 到 10 个字符之间', trigger: 'blur' }
                ],
                password:[
                    { required: true, message: '请输入密码', trigger: 'blur' },
                    { min: 6, max: 15, message: '长度在 6 到 15 个字符之间', trigger: 'blur' }
                ]
            }
        }
    },
    methods: {
        //重置按钮重置表单
        resetLoginForm(){
            // console.log(this)
            this.$refs.loginFormRef.resetFields();
        },
        //登录的逻辑函数
        login(){
            //$ref获取表单引用对象
            this.$refs.loginFormRef.validate(async(valid)=>{
                if(!valid) return;
                //解构 发送网络请求
               const {data:res} = await this.$http.post('login',this.loginForm)
               if(res.meta.status != 200) return this.$message.error('登录失败！')
               this.$message.success('登陆成功!') 
               //获取保存登录token
            //    console.log(res)
               window.sessionStorage.setItem('token',res.data.token)
               //编程式导航跳转
               this.$router.push('/home')
            })
        }
    },
}
</script>

<style lang="less" scoped>
.login_container{
    background-color: #2b4b6b;
    height: 100%;
}
.login_box{
    width: 450px;
    height: 300px;
    background-color: #fff;
    border-radius: 3px;
    position: absolute;
    left: 50%;
    top:50%;
    transform: translate(-50%,-50%);
}
.avater_box{
    width: 130px;
    height: 130px;
    border: 1px solid #eee;
    border-radius: 50%;
    padding: 10px;
    box-shadow: 0 0 10px #eee;
    position: absolute;
    left: 50%;
    transform: translate(-50%, -50%);
    background-color: #fff;
    img{
        width: 100%;
        height: 100%;
        border-radius: 50%;
        background-color: #eee;
    }
}
.login_form{
    position: absolute;
    bottom: 0;
    width: 100%;
    padding: 0 20px;
    box-sizing: border-box;
    .btns{
    display: flex;
    justify-content: end;
  }
}
   
</style>